20900474640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{53657}}^1$

素因数の和:54217

約数の個数: 120

約数和(自身を含む): 70321813848

約数和(自身を除く): 49421339208

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 541, 720, 1082, 1623, 2164, 2705, 3246, 4328, 4869, 5410, 6492, 8115, 8656, 9738, 10820, 12984, 16230, 19476, 21640, 24345, 25968, 32460, 38952, 43280, 48690, 53657, 64920, 77904, 97380, 107314, 129840, 160971, 194760, 214628, 268285, 321942, 389520, 429256, 482913, 536570, 643884, 804855, 858512, 965826, 1073140, 1287768, 1609710, 1931652, 2146280, 2414565, 2575536, 3219420, 3863304, 4292560, 4829130, 6438840, 7726608, 9658260, 12877680, 19316520, 29028437, 38633040, 58056874, 87085311, 116113748, 145142185, 174170622, 232227496, 261255933, 290284370, 348341244, 435426555, 464454992, 522511866, 580568740, 696682488, 870853110, 1045023732, 1161137480, 1306279665, 1393364976, 1741706220, 2090047464, 2322274960, 2612559330, 3483412440, 4180094928, 5225118660, 6966824880, 10450237320, 20900474640]

約数ペア:

[(1, 20900474640), (2, 10450237320), (3, 6966824880), (4, 5225118660), (5, 4180094928), (6, 3483412440), (8, 2612559330), (9, 2322274960), (10, 2090047464), (12, 1741706220), (15, 1393364976), (16, 1306279665), (18, 1161137480), (20, 1045023732), (24, 870853110), (30, 696682488), (36, 580568740), (40, 522511866), (45, 464454992), (48, 435426555), (60, 348341244), (72, 290284370), (80, 261255933), (90, 232227496), (120, 174170622), (144, 145142185), (180, 116113748), (240, 87085311), (360, 58056874), (541, 38633040), (720, 29028437), (1082, 19316520), (1623, 12877680), (2164, 9658260), (2705, 7726608), (3246, 6438840), (4328, 4829130), (4869, 4292560), (5410, 3863304), (6492, 3219420), (8115, 2575536), (8656, 2414565), (9738, 2146280), (10820, 1931652), (12984, 1609710), (16230, 1287768), (19476, 1073140), (21640, 965826), (24345, 858512), (25968, 804855), (32460, 643884), (38952, 536570), (43280, 482913), (48690, 429256), (53657, 389520), (64920, 321942), (77904, 268285), (97380, 214628), (107314, 194760), (129840, 160971)]